# A226638 (b-file synthesized from sequence entry) 0 0 1 1 2 6 3 20 4 84 5 319 6 1260 7 4901 8 19176 9 74860 10 292494 11 1142459 12 4462920 13 17433181 14 68099226 15 266014100 16 1039126224 17 4059116419 18 15856045380 19 61938144041 20 241947712356 21 945115407340 22 3691885043874 23 14421535219799 24 56334548849040 25 220058498917081